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{{Short description|Outdoor cooking device}} |
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{{Advert|date=December 2016}} |
{{Advert|date=December 2016}} |
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[[File:FIRECRAFT-PELLET-Q450-PELLET-GRILL-2-LARGE (1).jpg|frame]] |
[[File:FIRECRAFT-PELLET-Q450-PELLET-GRILL-2-LARGE (1).jpg|frame|Pellet grills]] |
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'''Pellet grills''', sometimes referred to as '''pellet smokers''', are outdoor cookers that combine elements of [[Smoking (cooking)#Wood smoke|charcoal smokers]], [[gas grill]]s, and [[oven|kitchen ovens]]. Fueled by [[Pellet fuel|wood pellets]], they can smoke |
'''Pellet grills''', sometimes referred to as '''pellet smokers''', are outdoor cookers that combine elements of [[Smoking (cooking)#Wood smoke|charcoal smokers]], [[gas grill]]s, and [[oven|kitchen ovens]]. Fueled by [[Pellet fuel|wood pellets]], they can smoke, grill, [[Braising|braise]], sear, and bake using an electric control panel to automatically feed fuel pellets to the fire, regulate the grill's airflow, and maintain consistent cooking temperatures. |
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== History == |
== History == |
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=== Early history and development === |
=== Early history and development === |
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Pellet grills |
Pellet grills began in [[pellet stove]]s. During the [[1973 oil crisis]], an increased demand for affordable home heating spearheaded a push toward alternative heat sources, which would later include wood pellets.<ref>{{Cite web|url=http://biomassproject.blogspot.com/2014/02/origins-of-wood-pellet.html|title=Biomass Industrial Innovative Projects: Origins of the Wood Pellet|last=Cakbentra|date=2014-02-28|website=Biomass Industrial Innovative Projects|access-date=2016-02-10}}</ref> Wood pellets were invented in the United States in the late 1970s. They are small, [[eraser]]-sized capsules made of compressed sawdust.<ref>{{Cite web|url=http://biomassmagazine.com/articles/1525/seeing-the-forest-for-the-trees|title=Seeing the Forest for the Trees {{!}} Biomassmagazine.com|website=biomassmagazine.com|access-date=2016-02-10}}</ref> In the early 1980s, Jerry Whitfield (a [[Boeing]] aviation engineer from Washington) and Joe Traeger (who ran a family-owned heating company in Oregon) both began experimenting with pellet-burning stoves.<ref>{{Cite web|url=http://woodpelletguru.blogspot.com/2007/12/in-beginning.html|title=WoodPelletGuru: In the beginning|last=Woodpelletguru|date=2007-12-03|website=WoodPelletGuru|access-date=2016-02-23}}</ref><ref>{{Cite web|url=http://livingoutfitters.com/brands/wood-pellet-products|title=Wood Pellet Products {{!}} Outdoor Patio Heaters {{!}} Living Outfitters|website=livingoutfitters.com|access-date=2016-02-23}}</ref> Powered by electricity, these pellet stoves used a motor-driven auger to transfer a specific amount of pellets from the storage hopper to a fire pot. A fan assisted in combustion and circulated the warm air.<ref>{{Cite web|url=http://www.popularmechanics.com/home/how-to/a6499/is-wood-the-best-renewable-fuel-for-heating/|title=Is Wood the Best Renewable Fuel for Heating?|date=2011-01-14|website=Popular Mechanics|access-date=2016-02-10}}</ref> |
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===Traeger grills=== |
===Traeger grills=== |
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[[File:TraegerGrill1994A.jpg|thumb|A Traeger Grill c. 1994. Note the side-mounted hopper where the pellets are stored.]] |
[[File:TraegerGrill1994A.jpg|thumb|A Traeger Grill c. 1994. Note the side-mounted hopper where the pellets are stored.]] |
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The Traeger pellet grill was created by Joe Traeger in 1985, and it was granted a patent in |
The Traeger pellet grill was created by Joe Traeger in 1985, and it was granted a patent in 1987.<ref>{{Cite patent|country=US|number=4823684A|title=Pellet-fired barbecue|status=patent|pubdate=1989-04-25|gdate=1989-04-25|invent1=Traeger|inventor1-first=Joseph}}</ref> Early Traeger Grills employed a three-position controller called an LMH controller that indicated settings for low, medium, and high heat. This controller was also used by many of the pellet grills that were first released after the Traeger patent expired. Each setting roughly corresponds to a temperature range that was attained using a fixed, predefined duty cycle.<ref>{{Cite web |last=Deyo |first=Thomas |date=2022-09-30 |title=Camp Chef vs Traeger: Which is the Best Pellet Grill? |url=https://thebestpelletsmokers.com/camp-chef-vs-traeger/ |access-date=2022-10-11 |website=thebestpelletsmokers.com |language=en-US}}</ref> |
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As a result of its patent, Traeger was the only manufacturer of pellet grills for twenty years. During that time, the company remained a small family-run business that distributed its pellet grills to a limited network of stores. After Traeger's patent expired in |
As a result of its patent, Traeger was the only manufacturer of pellet grills for twenty years. During that time, the company remained a small family-run business that distributed its pellet grills to a limited network of stores. After Traeger's patent expired in 2007, other pellet grill companies entered the market with similar technology.<ref>{{Cite web |date=2022-04-26 |title=Will We Have to Wait Until 2036 for More Gravity Fed Charcoal Grills? |url=https://www.cookoutnews.com/will-we-have-to-wait-until-2036-for-more-gravity-fed-charcoal-grills/ |access-date=2022-04-26 |website=CookOut News |language=en-US}}</ref> Joe Traeger and his son Brian sold their rights to Traeger Grills to a Florida Venture Capitalist for $12.4 million. In 2014, the Florida firm sold Traeger Grills to the private equity firm [[Trilantic Capital Partners]]. In 2018, Joe and Brian Traeger were hired by Danson's, which owned several grill companies, including Louisiana Grills and Pit Boss Grills. In 2019, Louisiana Grills announced the hire by unveiling a new line of grills, the Founders Legacy line, and advertisements stated "brought to you proudly by Joe Traeger, the founder of the original pellet grill," and showed the "Traeger Barn" that had been used in many of Traeger's advertisements. The new owners sued the Traegers and Dansons for using the barn and promotions involving the Traegers.<ref>{{Cite web |last=Poehler |first=Bill |title=Traeger Grills settles lawsuit against its founder, but suit against rival remains |url=https://www.statesmanjournal.com/story/news/local/silverton/2019/12/30/traeger-grills-has-settled-suit-founder-joe-traeger/2670774001/ |access-date=2022-06-14 |website=Statesman Journal |language=en-US}}</ref> |
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== Function == |
== Function == |
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[[File:Wood pellets.jpg|thumb|Wood |
[[File:Wood pellets.jpg|thumb|Wood pellets]] |
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Pellet stoves and pellet grills both run on wood pellets but there are differences in the pellets they burn. In addition to hardwood, pellets used for home heating often contain softwood and [[biomass]] scrap, which could be harmful if ingested.<ref>{{Cite web|url=http://www.cookinpellets.com/offer-2-types-of-pellets/|title=Why Do we Only offer 2 types of pellets??? - Cookinpellets.com|website=www.cookinpellets.com|access-date=2016-02-10}}</ref> Pellet grills use food-grade pellets that are made entirely from hardwood, although some manufacturers use [[soybean oil]] or [[vegetable oil]] as a lubricant during production.<ref>{{Cite web|url=http://seriousbirder.com/blogs/what-are-food-grade-wood-pellets/|title=What are food grade wood pellets - Use wood burning pellets in smokers|website=9/11 BBQ Tech and Puns|language=en-US|access-date=2016-02-10}}</ref> |
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Cooking with food-grade pellets produce a light smoky flavor. Wood pellet varieties include oak, maple, apple, alder, mesquite, cherry, hickory, and pecan.<ref>{{cite web|title=Wood Pellets for Grilling and Smoking|url=https://www.pelletgrillinsider.com/wood-pellet-accessories|website=Pellet Grill Insider|accessdate=15 September 2017}}</ref> |
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Many turn to pellet grills as an alternative to traditional smokers.{{Cn|date=November 2023}} |
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This method of cooking, known as indirect (or convection) cooking is also used by traditional charcoal and wood smokers. That similarity, and the fact that wood pellets produce smoke that flavors food, resulted in many early adopters turning to pellet grills as an easy-to-use alternative to traditional smokers. |
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Some pellet grill manufacturers have implemented [[Wi-Fi]]-enabled controls that allow for remote monitoring of the grill. Pellet grill technology is being integrated into other cooking devices, such as traditional ceramic [[Kamado]] |
Some pellet grill manufacturers have implemented [[Wi-Fi]]-enabled controls that allow for remote monitoring of the grill. Pellet grill technology is being integrated into other cooking devices, such as traditional ceramic [[Kamado]]-style grills and [[masonry oven|pizza ovens]]. |
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=== Temperature control === |
=== Temperature control === |
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[[File:How_it_Works_-_Wood_Pellet_Grill.jpg|thumb|400x400px|Pellet grill operation]] |
[[File:How_it_Works_-_Wood_Pellet_Grill.jpg|thumb|400x400px|Pellet grill operation]] |
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Pellet |
Pellet grills use automated fuel and air delivery, and can maintain a user-selected temperature. |
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First, the desired temperature is programmed into the electronic control panel. A motor-driven [[auger conveyor|auger]] then feeds a small amount of pellets from the hopper to the fire pot. Igniter rods light the pellets and prime the fire, raising the grill to an initial starting temperature of {{convert|140|F|C}} to {{convert|180|F|C}}, depending on the manufacturer. Once the fire is ready, the desired temperature is achieved via a repeated [[duty cycle]], which represents a segment of time when the auger is active and idle. A single duty cycle starts when the auger turns on and begins feeding pellets then continues through the period when it shuts off and remains idle. The duty cycle ends when the auger turns on again |
First, the desired temperature is programmed into the electronic control panel. A motor-driven [[auger conveyor|auger]] then feeds a small amount of pellets from the hopper to the fire pot. Igniter rods light the pellets and prime the fire, raising the grill to an initial starting temperature of {{convert|140|F|C}} to {{convert|180|F|C}}, depending on the manufacturer. Once the fire is ready, the desired temperature is achieved via a repeated [[duty cycle]], which represents a segment of time when the auger is active and idle. A single duty cycle starts when the auger turns on and begins feeding pellets then continues through the period when it shuts off and remains idle. The duty cycle ends when the auger turns on again. Duty cycles are typically stated as a percentage that represents the amount of time the auger is running—an auger that's always on has a 100% duty cycle, while one that is on half the time has a 50% duty cycle.<ref>{{Cite web|url=http://www.ortechcontrols.com/pdf/TR100_User_Guide.pdf|title=User's Guide: Model TR-100 Digital Grill Control|last=Ortech|date=|website=|publisher=|access-date=}}</ref> Each temperature setting has a different duty cycle. However, the auger-on portion of the duty cycle remains constant. Lower temperatures have longer auger-off periods, while high temperatures have shorter periods. |
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====Multi-position and digital controllers==== |
====Multi-position and digital controllers==== |
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[[File:Controller_.jpg|thumb|246x246px|A |
[[File:Controller_.jpg|thumb|246x246px|A multi-position controller]] |
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Some brands have switched to fully digital control panels that, in addition to a LED display, use a one-touch interface. The sensor uses a feedback loop, it measures the grill temperature and sends the information to the controller, which initiates or halts the auger when the grill exceeds or falls below a specified threshold.<ref>{{Cite web|url=http://www.traeger.com/learn/how-it-works|title=Traeger - How It Works|website=www.traeger.com|access-date=2016-02-16}}</ref> |
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Multi-position and digital controllers developed refined auger duty cycles.<ref name="auto2">{{Cite web|url=http://www.unitycustomservices.com/WP/traeger-grills-for-your-home-or-cabin-heres-how-it-works|title=Traeger Grills for your Home or Cabin: Here's How It Works – Unity Custom Services|website=www.unitycustomservices.com|access-date=2016-02-12}}</ref> It also keeps large amounts of pellets from pilling up in the fire pot. |
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===PID controllers (adjustable duty cycle)=== |
===PID controllers (adjustable duty cycle)=== |
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When the desired temperature is set into a PID controller, the pellet grill ignites the pellets and begins an initial warm-up to a predetermined temperature. The PID controller fine-tunes the rate at which pellets are fed by learning how long and how much fuel it takes to raise the pellet grill's temperature under the current conditions. Using an advanced algorithm, the PID controller applies this data to calculate a duty cycle and adjusts the duty cycle as necessary until it reaches the programmed temperature.<ref name="auto3">{{Cite web|url=http://www.csimn.com/CSI_pages/PIDforDummies.html|title=PID for Dummies - Control Solutions|website=www.csimn.com|access-date=2016-02-16}}</ref> These adjustments continue for hours, even after the programmed temperature has been met. |
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===Induction fans=== |
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{{unreferenced section|date=October 2017}} |
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A significant factor in pellet grill temperature control is the ability to regulate airflow to the fire. The improvement in induction fans has paralleled the advancement in controllers. Early pellet grills had fans that ran continuously once the power was turned on. That meant oxygen was constantly being fed to the fire, making it harder to control temperatures. Eventually, continuous fans were replaced by ones that ran in conjunction with the auger-on cycle. However, that still meant that every time pellets were being fed to the fire, so was oxygen. As a result, some manufacturers have incorporated intermittent fans into pellet grills. These fans work independent of the auger and can turn on and off to feed oxygen to the fire only when necessary. |
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==References== |
==References== |
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Latest revision as of 04:53, 5 September 2024
 | This article contains promotional content. (December 2016) |
.jpg)
Pellet grills, sometimes referred to as pellet smokers, are outdoor cookers that combine elements of charcoal smokers, gas grills, and kitchen ovens. Fueled by wood pellets, they can smoke, grill, braise, sear, and bake using an electric control panel to automatically feed fuel pellets to the fire, regulate the grill's airflow, and maintain consistent cooking temperatures.
History
[edit]Early history and development
[edit]Pellet grills began in pellet stoves. During the 1973 oil crisis, an increased demand for affordable home heating spearheaded a push toward alternative heat sources, which would later include wood pellets.[1] Wood pellets were invented in the United States in the late 1970s. They are small, eraser-sized capsules made of compressed sawdust.[2] In the early 1980s, Jerry Whitfield (a Boeing aviation engineer from Washington) and Joe Traeger (who ran a family-owned heating company in Oregon) both began experimenting with pellet-burning stoves.[3][4] Powered by electricity, these pellet stoves used a motor-driven auger to transfer a specific amount of pellets from the storage hopper to a fire pot. A fan assisted in combustion and circulated the warm air.[5]
Traeger grills
[edit]
The Traeger pellet grill was created by Joe Traeger in 1985, and it was granted a patent in 1987.[6] Early Traeger Grills employed a three-position controller called an LMH controller that indicated settings for low, medium, and high heat. This controller was also used by many of the pellet grills that were first released after the Traeger patent expired. Each setting roughly corresponds to a temperature range that was attained using a fixed, predefined duty cycle.[7]
As a result of its patent, Traeger was the only manufacturer of pellet grills for twenty years. During that time, the company remained a small family-run business that distributed its pellet grills to a limited network of stores. After Traeger's patent expired in 2007, other pellet grill companies entered the market with similar technology.[8] Joe Traeger and his son Brian sold their rights to Traeger Grills to a Florida Venture Capitalist for $12.4 million. In 2014, the Florida firm sold Traeger Grills to the private equity firm Trilantic Capital Partners. In 2018, Joe and Brian Traeger were hired by Danson's, which owned several grill companies, including Louisiana Grills and Pit Boss Grills. In 2019, Louisiana Grills announced the hire by unveiling a new line of grills, the Founders Legacy line, and advertisements stated "brought to you proudly by Joe Traeger, the founder of the original pellet grill," and showed the "Traeger Barn" that had been used in many of Traeger's advertisements. The new owners sued the Traegers and Dansons for using the barn and promotions involving the Traegers.[9]
Function
[edit]
Pellet stoves and pellet grills both run on wood pellets but there are differences in the pellets they burn. In addition to hardwood, pellets used for home heating often contain softwood and biomass scrap, which could be harmful if ingested.[10] Pellet grills use food-grade pellets that are made entirely from hardwood, although some manufacturers use soybean oil or vegetable oil as a lubricant during production.[11]
Cooking with food-grade pellets produce a light smoky flavor. Wood pellet varieties include oak, maple, apple, alder, mesquite, cherry, hickory, and pecan.[12]
Many turn to pellet grills as an alternative to traditional smokers.[citation needed]
Some pellet grill manufacturers have implemented Wi-Fi-enabled controls that allow for remote monitoring of the grill. Pellet grill technology is being integrated into other cooking devices, such as traditional ceramic Kamado-style grills and pizza ovens.
Temperature control
[edit]
Pellet grills use automated fuel and air delivery, and can maintain a user-selected temperature.
First, the desired temperature is programmed into the electronic control panel. A motor-driven auger then feeds a small amount of pellets from the hopper to the fire pot. Igniter rods light the pellets and prime the fire, raising the grill to an initial starting temperature of 140 °F (60 °C) to 180 °F (82 °C), depending on the manufacturer. Once the fire is ready, the desired temperature is achieved via a repeated duty cycle, which represents a segment of time when the auger is active and idle. A single duty cycle starts when the auger turns on and begins feeding pellets then continues through the period when it shuts off and remains idle. The duty cycle ends when the auger turns on again. Duty cycles are typically stated as a percentage that represents the amount of time the auger is running—an auger that's always on has a 100% duty cycle, while one that is on half the time has a 50% duty cycle.[13] Each temperature setting has a different duty cycle. However, the auger-on portion of the duty cycle remains constant. Lower temperatures have longer auger-off periods, while high temperatures have shorter periods.
Multi-position and digital controllers
[edit]
Some brands have switched to fully digital control panels that, in addition to a LED display, use a one-touch interface. The sensor uses a feedback loop, it measures the grill temperature and sends the information to the controller, which initiates or halts the auger when the grill exceeds or falls below a specified threshold.[14]
Multi-position and digital controllers developed refined auger duty cycles.[15] It also keeps large amounts of pellets from pilling up in the fire pot.
PID controllers (adjustable duty cycle)
[edit]When the desired temperature is set into a PID controller, the pellet grill ignites the pellets and begins an initial warm-up to a predetermined temperature. The PID controller fine-tunes the rate at which pellets are fed by learning how long and how much fuel it takes to raise the pellet grill's temperature under the current conditions. Using an advanced algorithm, the PID controller applies this data to calculate a duty cycle and adjusts the duty cycle as necessary until it reaches the programmed temperature.[16] These adjustments continue for hours, even after the programmed temperature has been met.
References
[edit]- ^ Cakbentra (2014-02-28). "Biomass Industrial Innovative Projects: Origins of the Wood Pellet". Biomass Industrial Innovative Projects. Retrieved 2016-02-10.
- ^ "Seeing the Forest for the Trees | Biomassmagazine.com". biomassmagazine.com. Retrieved 2016-02-10.
- ^ Woodpelletguru (2007-12-03). "WoodPelletGuru: In the beginning". WoodPelletGuru. Retrieved 2016-02-23.
- ^ "Wood Pellet Products | Outdoor Patio Heaters | Living Outfitters". livingoutfitters.com. Retrieved 2016-02-23.
- ^ "Is Wood the Best Renewable Fuel for Heating?". Popular Mechanics. 2011-01-14. Retrieved 2016-02-10.
- ^ US patent 4823684A, Traeger, Joseph, "Pellet-fired barbecue", published 1989-04-25, issued 1989-04-25
- ^ Deyo, Thomas (2022-09-30). "Camp Chef vs Traeger: Which is the Best Pellet Grill?". thebestpelletsmokers.com. Retrieved 2022-10-11.
- ^ "Will We Have to Wait Until 2036 for More Gravity Fed Charcoal Grills?". CookOut News. 2022-04-26. Retrieved 2022-04-26.
- ^ Poehler, Bill. "Traeger Grills settles lawsuit against its founder, but suit against rival remains". Statesman Journal. Retrieved 2022-06-14.
- ^ "Why Do we Only offer 2 types of pellets??? - Cookinpellets.com". www.cookinpellets.com. Retrieved 2016-02-10.
- ^ "What are food grade wood pellets - Use wood burning pellets in smokers". 9/11 BBQ Tech and Puns. Retrieved 2016-02-10.
- ^ "Wood Pellets for Grilling and Smoking". Pellet Grill Insider. Retrieved 15 September 2017.
- ^ Ortech. "User's Guide: Model TR-100 Digital Grill Control" (PDF).
- ^ "Traeger - How It Works". www.traeger.com. Retrieved 2016-02-16.
- ^ "Traeger Grills for your Home or Cabin: Here's How It Works – Unity Custom Services". www.unitycustomservices.com. Retrieved 2016-02-12.
- ^ "PID for Dummies - Control Solutions". www.csimn.com. Retrieved 2016-02-16.